Improvement in grain-drills



RMABKS d A.C.`BEHNE "Wheat Drin. A Y N 1166.12 -Pmwun JUL. 4,18'21UNITED STATEs PATENT OFFICE.

ROBERT MARKS AND ANDREW CRISTIAN BEHNE, OF CON N ERSVILLE, INDIANA.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 116,612, dated July 4,1871.

To all whoml it may concern:

Be it known that we, ROBERT MARKs and ANDREW CRISTIAN BEHNE,ofConnersville, Fayette county, Indiana, have invented an ImprovedWheat- 1)rill, of which the followingis a specification This inventionrelates to that class of' agricultural implements in whichthe wheat isconducted from the hopper and discharged into the grainspouts bymeans ofafeed-wheel that revolves inaI horizontal plane, and our improvementconsists, principally, in providi ng such wheels with ratchetshapedteeth, which serve to deliver the grain in a steady and uniform manner.

Figure I is a side elevation of a wheatdrill embodying our improvements.Fig. 2 is a rear elevation of the implement with the handles broken off,and Figs. 3 and 4 are, respectively, horizontal and vertical sections ofthe hopper on an enlarged scale.

A is the main frame of the implement, having journal-bearin gs, a, forthe reception of the shaft B of ground-wheel G. Secured to the shaft Bis bevel-wheel l), which gears with asimilar wheel, E, that is securedto the front end of the rearwardly-prqjecting shaft F. The front end Vofshaft F rotates within the bearing c, while its rear end is journaled inthe arm g of rock-shaft Gv, which latter is operated at will by thelimber lever H. Secured to the shaft F, near the arm g, is avbevel-wheel, I, that gears with a similar but horizontal wheel, J,which is secured to a shaft, K, that occupies an axial position withreference to the hopper L. The shaft K isijournaled in the bed-plate Mof' the hopper, and also in a guardplate or shield, N, that is placednear the bottom of said hopper. This guard-plate slopes down from itscenter to its periphery, as shown in Fi g. 4, and it is provided withthree equidistant lugs or projections, u n n, which are so arranged asto be located above the three grain-spouts O O O. Situated betweenthebed-plate M and shield N, and attached to shaft K, is a horizontalfeedwheel, P, whose periphery is provided with a series ofratchet-shal'led teeth, p. R are screws or bolts, which, passing throughthe lugs n n n, serve to secure the shield N to the bed-plate M. The topof the hopper is sul-mounted by a cap, S, having a hinged lid, s, andsaid cap and the bed-plate M are united by bolts l. The bed-plate lvlhas a (lished portion or recess, m, within which revolves the feed-wheelFp. T T T are the covering shares. U is a brace, which unites the twohandles V V', and this brace is provided with two notches, u u', for theretention of the lever H. NV W are braces, which extend from the frame Ato the handles VY. Attached to the forward end of the frame A is a beam,X, having a series of apertures, .10, for the reception of' the bolt yof the shiftablc clevis Y. Z are the rods, which extend from the beam Xto the frame A.

As the implement is drawn across the field the gearing l) E I. J compelsthe wheel I) to rota-te in the direction indicated by the 'arrow in Fig.4, which act causes the teeth p of said wheel to draw a regular anduninterrupted supply of grain from the hopper L and deliver it into thespouts O 0' O. The teeth p are being filled with grain during the timethey are passing from one of the lugs n to the next one, and as soon asthe teeth pass under said lugs they act as cut-offs. The guardplate N,being placed above the feed-wheel l), keeps the main bulk of the wheatfrom pressing upon it, and, consequently, by diminishing the friction,enables the feed-movement to be operated with the least expenditure ofpower and with the utmost regularity. y

W'henever it is desired to render the feed-mechanism inoperative, itcanbe done by simply shifting the lever l-l from the notch u to the oneu, which act throws the wheel I out of gear with the one J, as indicatedbythe dotted lines in Fig. 2. lf preferred, the gearing which operatesthe feedwvheel may be located beneath the frame A instead of above it,as here shown.

W' e claim as our invention-k The combination and arrangement of theguard-plate N having the lugs or cut-offs yn 'n' n, the feed-wheel I),provided with teeth p for conveying the grain to the dropping-apertures,bed-plate M, spouts O O 0, rock-shaft G, lever H, and gearing l) E F I,substantially as and for the purpose specified.

In testimony of which invention we hereunto set our hands.

ROBERT MARKS. A. CRISTIAN BEHNE. Witnesses GEO. H. KNIGHT, J AMES H.LAYMAN.

